Finding the Fourth Proportional to 2,014.64, 2,779.89 and 1,228.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,014.64 : 2,779.89 = 1,228.94 : x
2. Step 2: Convert to fraction form
   2,014.64/2,779.89 = 1,228.94/x
3. Step 3: Cross multiply
   2,014.64x = 2,779.89 × 1,228.94
4. Step 4: Simplify right side
   2,014.64x = 3,416,318.02
5. Step 5: Solve for x
   x = 3,416,318.02/2,014.64
6. Step 6: Final answer
   x = 1,695.75